Fabricating lightweight ceramics by spraying clay on knitted structures

Gosch, Lukas; Jauk, Julian; Vašatko, Hana; Šamec, Elizabeta; Raffaelli, Matteo; Rutzinger, Stefan; Stavrić, Milena

doi:10.1177/14780771221135026

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…An initial experiment was carried out to cover filament materials with a clay mixture and to evaluate suitable types of filaments. A set of different filament materials with thicknesses ranging between 0.2 and 2 mm was selected based on existing studies [ 22 , 23 ] and preliminary work [ 24 ]. For testing purposes, each filament was positioned at the center of a circular clay extrusion with an 8mm diameter, leading to clay-to-filament cross-sectional area ratios ranging from 100:0.06 to 100:6.…”

Section: Methodsmentioning

confidence: 99%

Filament-Reinforced 3D Printing of Clay

Jauk,

Gosch,

Vašatko

et al. 2023

Materials

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This research resulted in the development of a method that can be used for filament-reinforced 3D printing of clay. Currently, clay-based elements are mixed with randomly dispersed fibrous materials in order to increase their tensile strength. The advantages of taking this new approach to create filament-reinforced prints are the increased bridging ability while printing, the increased tensile strength of the dried elements, and the achievement of non-catastrophic failure behavior. The research methodology used involves the following steps: (1) evaluating properties of various filament materials with respect to multiple criteria, (2) designing a filament guiding nozzle for co-extrusion, and (3) conducting a comprehensive testing phase for the composite material. This phase involves comparisons of bridging ability, tensile strength evaluations for un-reinforced clay prints and filament-reinforced prints, as well as the successful production of an architectural brick prototype. (4) Finally, the gathered results are subjected to thorough analysis. Compared to conventional 3D printing of clay, the developed method enables a substantial increase in bridging distance during printing by a factor of 460%. This capability facilitates the design of objects characterized by reduced solidity and the attainment of a more open, lightweight, and net-like structure. Further, results show that the average tensile strength of the reinforced sample in a dry state exhibited an enhancement of approximately 15%. The combination of clay’s ability to resist compression and the filament’s capacity to withstand tension has led to the development of a structural concept in this composite material akin to that of reinforced concrete. This suggests its potential application within the construction industry. Producing the prototype presented in this research would not have been possible with existing 3D printing methods of clay.

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Section: Methodsmentioning

confidence: 99%

Filament-Reinforced 3D Printing of Clay

Jauk,

Gosch,

Vašatko

et al. 2023

Materials

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“…A knitted soft shell with a unique topology is created, while the addition of fillers provides structural strength, as demonstrated in various studies by Ahlquist et al (2014), Gosch et al (2022), Popescu et al (2018Popescu et al ( , 2021, Liu et al (2020), Pal et al (2020). The textile shell is stabilized with minimal effort using a temporary external frame, and the filler is applied to lock the topology.…”

Section: Introductionmentioning

confidence: 99%

Crochet Digital Assemblage - Notes on additive manufacturing of textile in architecture

Nix,

Sprecher

2023

Proceedings of the 41st International Conference on Education and Research in Computer Aided Architectural Design in Europe (eC

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The past decade has seen a growing interest in the use of textiles in architecture, driven by advancements in digital knitting technology. However, while digital knitting machines have enabled the creation of 3D-shaped textiles, they still face limitations in terms of handling complex topologies, output scale, and material thickness. This study proposes crochet as an alternative to knitting in large-scale applications due to its ability to create seamless 3D shells. Although there have been significant advances in the computation of crochet instructions, placing it within the context of additive manufacturing, a digital fabrication method for volumetric crochet is still lacking. This paper offers a comprehensive overview of the recent history of computational tools utilized in fabricating continuous yarned 3D textiles together with an in-depth comparison to reveal the significant differences between knitting and crochet. It then proceeds to identify the relevant design attributes for a novel technology by analyzing hand gestures and toolpaths. Finally, the paper presents a novel digital fabrication device designed for large-scale crochet frameworks, which highlights the considerable advantages of crochet over other related fabrication methods. The proposed robotic device employs patented technology, which enables unprecedented fabrication capabilities in the field and opens new prospects for incorporating large-scale textiles in architecture.

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Fabricating lightweight ceramics by spraying clay on knitted structures

Cited by 2 publications

References 17 publications

Filament-Reinforced 3D Printing of Clay

Filament-Reinforced 3D Printing of Clay

Crochet Digital Assemblage - Notes on additive manufacturing of textile in architecture

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